d-6.5=-7.7

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Solution for d-6.5=-7.7 equation: 


Simplifying
d + -6.5 = -7.7

Reorder the terms:
-6.5 + d = -7.7

Solving
-6.5 + d = -7.7

Solving for variable 'd'.

Move all terms containing d to the left, all other terms to the right.

Add '6.5' to each side of the equation.
-6.5 + 6.5 + d = -7.7 + 6.5

Combine like terms: -6.5 + 6.5 = 0.0
0.0 + d = -7.7 + 6.5
d = -7.7 + 6.5

Combine like terms: -7.7 + 6.5 = -1.2
d = -1.2

Simplifying
d = -1.2

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